SPOOL FOR WINDING METALLIC WIRE

Description

Technical Field

[0001] The present invention relates to a spool for winding metallic wire.

Background Art

[0002] It is known that spools for winding metallic wire, which comprise a tubular body for supporting the coil of wire that is provided, at its ends, with wall elements for containing the coil, are widely used in the industrial field.

[0003] Known spools suffer some drawbacks.

[0004] A spool with a tubular barrel and head members assembled in a firm and rigid manner is known from US 2 212 377.

Disclosure of the Invention

[0005] Therefore the aim of the present invention is to provide a spool that has maximum constructive simplicity and considerable stiffening characteristics.

[0006] This aim, this and other objects which will become better apparent hereinafter, are achieved by a spool for winding metallic wire, according to the present invention, comprising a tubular body for supporting a coil of wire that is provided, at ends thereof, with wall elements for containing said coil, at least one of which is provided, at a surface directed outward, with at least one pawl for engagement with means for turning said spool, each wall element comprising a flat flange with a stiffening fold out at the outer edge, which is jointly connected by welding to the corresponding end of the tubular body, and a flat complementary flange, which is seamed by spot welding to the outer surface of said flange, at least one pawl being jointly connected to said complementary flange of at least one wall element, and the two ends of the tubular body having the wall shaped so as to form a bevel that allows convenient ways of approaching the spindle designed to support the spool during operation.

Brief description of the drawings

[0007] Further characteristics and advantages of the spool according to the present invention will become better apparent from the description of a preferred but not exclusive embodiment thereof, illustrated by way of non-limiting example in the accompanying drawings, wherein:

Figure 1 is a perspective view of the spool, according to the invention;

Figure 2 is a view of a detail of Figure 1.

Ways of carrying out the Invention

[0008] With reference to the figures, reference numeral 1 designates a tubular body for supporting a coil of wire that is provided, at its ends, with two wall elements 2 and 3, which are mirror-symmetrically identical.

[0009] Therefore, only the element 2 is described. It comprises a flat flange 4, with a stiffening fold 4a at the outer edge, jointly connected by welding 4b to the corresponding end of the tubular body 1.

[0010] A flat complementary flange 5 is seamed to the flange 4 at the outer surface of the flange by means of spot welds 5a, 5b and is provided with at least one and preferably two jointly connected pawls 6 and 7 which are associated with the complementary flange by welding at an inner edge 6a for the pawl 6; as regards such pawls, it should be noted that they might be absent in the wall element 3.

[0011] The pawls are adapted for engagement with means for turning the spool.

[0012] Finally, the two ends of the tubular body 1 have the wall shaped like a bevel 1a for the end that can be seen in Figure 2; such bevel allows convenient ways of approaching the spindle designed to support the spool during operation.

[0013] From what has been described it is readily evident that the spool according to the invention lends itself to be provided according to very simple manufacturing methods, and it is also noted that it has stiffness characteristics that ensure maximum correctness in operation.

[0014] Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly, such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs.

Claims

1. A spool for winding metallic wire, comprising a tubular body (1) for supporting a coil of wire that is provided, at ends thereof, with wall elements (2,3) for containing said coil, at least one of which is provided, at a surface directed outward, with at least one pawl (6,7) for engagement with means for turning said spool, each wall element (2,3) comprising a flat flange (4) with a stiffening fold (4a) at the outer edge, which is jointly connected by welding (4b) to the corresponding end of the tubular body (1), and a flat complementary flange (5), which is seamed by spot welding (5a,5b) to the outer surface of said flange, at least one pawl (6,7) being jointly connected to said complementary flange (5) of at least one wall element (2,3), the two ends of the tubular body (1) having the wall shaped so as to form a bevel (1a) that allows convenient ways of approaching the spindle designed to support the spool during operation.

2. The spool according to claim 1, characterized in that each pawl (6,7) is jointly connected to the corresponding complementary flange (5) by welding at the inner edge.

Ansprüche

1. Spule zum Aufwickeln von Metalldraht, mit einem rohrförmigen Körper (1) zum Abstützen eines Drahtwickels, der an seinen Enden mit Wandelementen (2, 3) zum Begrenzen des Wickels versehen ist, von denen zumindest eines an einer nach außen gerichteten Fläche mit zumindest einem Zapfen (6, 7) zum Eingriff mit Mitteln zum Drehen der Spule versehen ist, wobei jedes Wandelement (2, 3) einen mit einem Versteifungsumschlag (4a) versehenen flachen Flansch (4) am äußeren Rand, der durch Schweißen (4b) mit dem entsprechenden Ende des rohrförmigen Körpers (1) verbunden ist, und einen flachen Komplementärflansch (5) aufweist, der durch Punktschweißen (5a, 5b) an die Außenfläche des Flansches angeschlossen ist, wobei der zumindest eine Zapfen (6, 7) mit dem Komplementärflansch (5) des zumindest einen Wandelementes (2, 3) verbunden ist, wobei die Wand der beiden Enden des rohrförmigen Körpers (1) so geformt sind, daß sie eine Abschrägung (1a) bilden, die zweckmäßige Wege zur Annäherung an die Spindel ermöglichen, die dazu ausgebildet ist, die Spule während des Betriebes abzustützen.

2. Spule nach Anspruch 1, dadurch gekennzeichnet, daß jeder Zapfen (6, 7) mit dem entsprechenden Komplementärflansch (5) am inneren Rand durch Schweißen verbunden ist.

Revendications

1. Bobine pour enrouler un fil métallique, comprenant un corps tubulaire (1) pour supporter un rouleau de fil qui est doté, au niveau de ses extrémités, d'éléments de paroi (2, 3) pour contenir ledit rouleau, dont au moins un est doté, au niveau d'une surface dirigée vers l'extérieur, d'au moins un cliquet (6, 7) pour la mise en prise avec des moyens pour faire tourner ladite bobine, chaque élément de paroi (2, 3) comprenant un rebord plat (4) avec un pli de renforcement (4a) au niveau du bord externe, qui est raccordé conjointement par soudage (4b) à l'extrémité correspondante du corps tubulaire (1), et un rebord complémentaire plat (5) qui est soudé par soudage par points (5a, 5b) à la surface externe dudit rebord, au moins un cliquet (6, 7) étant raccordé conjointement audit rebord complémentaire (5) d'au moins un élément de paroi (2, 3), les deux extrémités du corps tubulaire (1) ayant la paroi formée afin de former un biseau (1a) qui permet des manières pratiques d'approcher la broche conçue pour supporter la bobine pendant le fonctionnement.

2. Bobine selon la revendication 1, caractérisée en ce que chaque cliquet (6, 7) est assemblé conjointement au rebord complémentaire (5) correspondant par soudage au niveau du bord interne.

Drawing